Seletividade de herbicidas em mudas de pinhão-manso

Abstract

Great nterest in physicnut has been observed for production of biodiesel. The main difficulty to introduce this crop in agronomic areas is the lack of information on management techniques. Herbicide selectivity for weed control on has been considered a drawback for crop development in northern Minas Gerais State. This work had the objective of evaluating seedlings submithed to commercial herbicides, using a randomized block experimental design with four replications. Eleven herbicides and one untreated check were tested under field conditions in Janaúba, MG. In post-emergence application the active ingredients cloransulam, diclosulam, haloxyfop-r-methyl, flumetsulam, 2,4D, bentazon, imazapir, imazapic, imazethapyr and quinclorac provoked phytotoxic effect in seedlings. The trifluralim herbicide applied in post-emergence is selectivite to seedlings of Jatrophas curcas.